Hi all new to the site and i have a problem with my iphone 4! lol. been searching the net and tried all the remedys people have suggested to other people and nothing works! but i dont actually know if it is a problem or it could possibly be signal related? basically whats happening is my phone sends recieves texts no problem as with whatsapp etc. doesnt call out or recieve calls, but somtimes i will receive a call but not hear anything and when i try see if my phone will call out the other phone rings but mine just says it still trying to connect like it hasnt started ringing yet! lol does it make sense so far? when i left work last night my phone was working as it should making calls etc, but then it happens again today not making calls or recieving! im a mechanic and work in a garage and its just started doing this past few days has always worked perfect before! im with three mobile aswel and its been jailbroken. lol thanks